Lloyd/Bradshaw/Gerhart at flex?

Lloyd has been my WR2 since he was traded to STL but the QB injury issues have reared their head this week and they head out to Seattle where Seahawks always play tough even when its not MNF. So with Crabtree playing well lately I have elevated him to WR2 against Arizona. I personally like to use RBs at the flex when I can due to the amount of touches and less reliability on QB play. So I have Lloyd, Gehart (if no AP) who seems be productive in 2 weeks against a disfunctional Lions, and Bradshaw (my lean) who is just returning from a month layoff injury and faces a respectable Dallas run defense and has the TD vulture in Jacobs.